diff --git a/Documentation/trace/ftrace-design.txt b/Documentation/trace/ftrace-design.txtindex dc52bd4..6fca17b 100644--- a/Documentation/trace/ftrace-design.txt+++ b/Documentation/trace/ftrace-design.txt@@ -247,6 +247,9 @@ You need very few things to get the syscalls tracing in an arch. - Support the TIF_SYSCALL_TRACEPOINT thread flags. - Put the trace_sys_enter() and trace_sys_exit() tracepoints calls from ptrace in the ptrace syscalls tracing path.+- If the system call table on this arch is more complicated than a simple array+ of addresses of the system calls, implement an arch_syscall_addr to return+ the address of a given system call. - Tag this arch as HAVE_SYSCALL_TRACEPOINTS.